Automatic freight mechanism.



N. 90746. PATENTED JUNE 16 1908.

O 8 e w YOUNKMAN.

AUTOMA TIC FREIGHT MECHANISM. APPLICATION FILED MAY 27,

1907' 2 SHEETS-SHEET 1.

PATENTED JUNE 16, 1908. G. W. YOUNKMAN. AUTOMATIC FREIGHT MECHANISM.

APPLICATION FILED MAY 27, 1907.

2' SHEETS-SHEET 2.

y 1 Grim/110,1

' GEORGE W. YOUNKMAN, OF DENVER-COLORADO.

AUTOMATIC FREIGHT MECHANISM.

Specificationof Letters Patent.

Patented June 16, 1908.

Application filed May 27, 1907. Serial No. 375,849.

To all whom it may concern:

Be. it known that I, GEORGE W. YOUNK- MAN, a citizen of the United States, residing at the city and county ,of Denver and State of an inclined stationary grate or chute, whereanti-frictional rollers bein extremities of each rod an ada ted to enter Colorado, have invented certain new and useful Improvementsv in Automatic Freight- Mechanism; and I do declare ,the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to 'make and use the same, reference being had to the accompanying drawings, and .to' the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in means for lowering objects from one floor of a building or other structure to a lower floor or position, the operation being entirely automatic, since a governor is employed to control the speed of the apparatus. Hence a minimum speedof travel of the carrier is at all times maintained. The carrying mechanism consists of two airs of upper and lower wheels and an en ess carrier composed of cables engaging the said wheels and upon which are mounted carriages provided with grated platforms adapted to intermesh with by as the carriage asses-through the grated 'chute,'the materia on the carria e is autw matically removed and caused to s idedo'wn: wardly to any desired location, The carriages are connected with the cables: by a special construction including rods whereby the cables are clamped in place, mounted at the a frame composed of channe bars which form guides for the endless carrier.

-'Having briefly outlined my improved con- 'struction, I will proceed to describe the same indetail reference bein made to the accompanying drawing in w 'ch is illustrated an embodiment thereof. I F

In this drawing, Figure 1 ,is a side elevation partly in section illustrating my improved freight car ing mechanism. Fig. 2 18 a fragmentary ront view of the same. Fig. 3 is asection taken on the line 33 Fig.

1. Fig. 4 is a view looking in the direction of arrow .4 Fig. 1 with the grated chute removed and the lower frame work .partly broken away. Fig. 5 is a top view of one of the carriages shown in detai Fig. 6 is an enlarged sectional view shown? one of the channel bars in cross section an a portion of the carriage mechanism. Fig. 7 is a detail .movable boxes in which are journaled the outer extremities of an axle 10 carrying wheels 12 in the peripheries of which are formed recesses 13 atsuitable intervals. The upper wheels 12 are mounted on an axle 11 journaled in boxes 14 supported by standards 15 resting on horizontally disposed channel bars 16. The endless carrier is provided with two endless cables 17 to which are secured a number of carriages 18. Each of these carriages is composed of a grated top 19 consisting of a central web 20 and fingers 21 projecting in opposite directions therefrom.

Connected with the opposite ends of the platform 19 of each carriage is a V-shaped frame 24 composed of two bars 25 whose extremities remote from the carriage merge into a lug 26 through which passes a spacing sleeve 27 surrounding a rod 28 whose extremiextremities, in order to hold the cable morev securely against slipping. Cooperating with the clamping face of the sleeve 29, is a disk 31 having a curved groove 31 adapted to engage the cable on the opposite side from the clamping face of the sleeve ';29. This disk 31 is held in operative engagement with the clamping face of the said sleeve by one extremity of the spacing sleeve 27.; Nuts 34 are applied to the opposite extremities of the rod 29, and by screwing these nuts suiti- .ciently tight, the cables are locked securely in place and it is in this manner that the V- shaped end members of the carriage are connected with the cable. The outer extremity of each sleeve 29 is reduced as shown at 29*,

enter and leave lugs 20 correspond.

whose upper extremities are to form a journal for an anti-frictional roller 32 which is prevented from slipping off its journal by a washer 33 against which the nut 34 is screwed. In orderthatthe cable may theclamping members 29 and 31 at the opposite extremities ofa diameter ofthe said members, the connecting rod- 2., is passed eccentrioally through these clamping members. The journal 29 of the clamping sleeve 29, is so formed that the anti-frictional roller 32 rotates on the true axis of the clamping members. The separated extremities of the bars-'25 of the end frames, are suitably secured-to of the carriage as shown at 35.

The carriage platform is cables 17 in substantially the same-manner as the V-shaped end frames heretofore described. Inthe case of the platform 19,hoW- ever, the web 20 thereof ,is provided with perforated lugs In comparing this construction with that for connecting the end franiesof the platform with the cables, these 26 of the said frame, With this exception, the two constructionsare substantially iden 'tical and the corre's onding arts will be given the same re erence c aracters- A spacing sleeve 27 and acts on a clam )ing member 31' which cooperates with a sl 'eeve mounted a roller 32. The'rod 28 asses through the sleeve 27 and through the 0 amping members 29 and .31 having its extremities secured in place by nuts in the manner illustrated in Fig. 6. The anti-frictional rollers 32'of the carriage, en age the recesses 13 of the upper and lower w eels of the endless carrier. I

.In order that the speed of the carrier may be properly regulated, a centrifugal governor mechanism 36, carried by a shaft 37, acts on a stationary friction ring 38. is provided at onetextreniity with a 38 meshing with a larger gear 39. y virtueof this construction, when freight is downwardly traveling side of the carrier, the

latter is caused to travel, thusimp'arting.

motion to the gear 39 and thence to the 0V- ernor mechanism through the medium 0 pinion 38 and the shaft 37.

At the lower'extremity of the carrier, is mountedv an inclined chute or platform 40 ported by the frame work of while its lower by uprights 41.

the apparatus extremity may be supported This chute 40 :is composed of spaced bars 42 connected by transverse pieces 43. The bars 42 are allow the web 20 of the through, while the fingers divided at 44 to carriage to pass 21 of the carriage platform-pass between the spaceybars 42 of the inclinedchute. In this way the chute .matically transferred or the platform secured to the I 20* formed on'its under'surfaceand at its opposite ends.

- the combinationwith with the perforated lugs passes through the lugs 20? 29 upon which is with channel bars forming The'shaft 37 in ion the for tightening ther0 through which the rod passes, the sald suitably sup-' as described.

'forms'no obstruction to'the travel of the earriage though'it is located in the path thereof. From this it be readily understood, that as the carriage passe articles upon the carriage are automatically removed therefrom and'left upon the chute,. whose downward inclination is made sufficient to cause the said articles to'be auto-' delivered .to any suitable or desired'pointi r The framework of the structure is 1'0- videdon one side with channel bars 23 into whose grooves or channels the bearing devices -ofthe carriages carrier on the freight arrying side'is caused to move downwardly in a vertical plane, thus" .of the carriages which m'ght result in the displacing of the freight carried thereby.

preventing the swaying Having-thus described my invention, what Iclaimi'sr 1.. In mechanism of the class described, a suitableframe work, of upper and lower Wheels jour'naled therein,

endless cables engaging the said wheels whose peripheries are grooved to receive them, carria es mounted onthesaid cables, and means for clamping said carriages to said cables said clamping means comprising a; pair of clamping members foreachcable, a rod passing throu h the said clampingmember, means for tigiitening the rod at the end s through the chute, the i rotrude, whereby the of one clam ing member, anda spacin sleeve through wh ch the rod pa'sses,the sai sleeve engagmg at its opposlte ends the other clampmg member; of each pair, and saidcarriages having end bearings adapted to enter transverse recesses formed. inthe peripheries of the wheels, the frame workb'ein provided desfor the carriages on the down side of the apparatus and into which the bearings of'the carriages protrude. v

2.1 The combination with upper and lower pairs, of wheels, of-two' endless cables suitably separated and engaging the carriages carried by the cables, and means for clamping the carriages to the cables, said clamping means comprisin a pair ofclamping' members for each cab e,- a rod passing through the said clam at the end of one clamping 'member, and a spacing sleeve sleeve engaging at its opposite ends the other clamping member of each pair, substantially 3. Inapparatus of the class described,the combination with upper and lower pairs of wheels, of two endless cables adapted toen gage the wheels, and means for transversely said wheels,

ing members, means connecting the cables, comprisin a pair of passes, the extremities of the said sleeve entremities of the outer clamping members, and a spacing sleeve through which the rod passes, the extremities of the said sleeve engaging the inner clamping member of the two pairs, substantially as described.

4. ln apparatus of the class described, thecombination with u per and lower pairs of wheels, of two en less cables adapted to enga e the wheels, and means for transversed connecting the cables, comprising a pair of clamping members for each cable, a rod passing through both pairs of clamping members, means for tightening the rod at the extremities of the outer clamping members, a spacing sleeve through which the rod gaging the inner clamping member of the two pairs, and carriages mounted on the said cable connecting devices intermediate their extremities, substantially as described.

5. In a carrier mechanism of the class described, the combination with a governor, of upper and lower wheels whose peripheries are irovided with recesses suitably spaced, endess cables suitably spaced and adapted to engag the said wheels whose peripheries are also grooved to receive the cables, carriages mounted on the cables and provided with anti-frictional bearings, adapted to enter the recesses of said wheels, and means for clamping the carriages to the cables, said clamping means com risin a pair of clamping members for eac 1 cab e, a rod passing through the said clamping members, means of upper and lower pairs of Wheels, endless cablessuitably separated and engaging the said wheels, carriages carried by the cables and having grated platforms, and a grated chute supported at the lower extremity of the apparatus and through which the earriages are adapted to pass, the grate bars of the carriage platforms intermeshing with the bars of the chute whereby the articles resting upon the platform are automatically moved and left upon the chute, and means for clamp ing the carriages to the cables, said clamping means comprising a pair of clamping members for each cable, a rod passing through the said clamping members, means for tightening the rod at theend of one clamping member, and a spacing sleeve throughwhich the rod passes, the said sleeve engaging at its opposite ends the other clamping member of each pair, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

/ GEORGE 1V. YOUNKMAN.

Witnesses:

HENRY J. l\.[ARTIN, DENA NELSON. 

